Firefly acquires Ballantyne Strong, Inc.'s remaining taxi-top advertising business http://www.globenewswire.com/news-release/2020/08/04/2072441/0/en/Ballantyne-Strong-Completes-Sale-of-Strong-Outdoor-to-Firefly-Systems-Increases-Strategic-Investment-in-Firefly-to-13-Million.html
